If your destination is east of Village Center Drive (shown in blue), use Yorba Linda Boulevard/Weir Canyon Road from the Riverside Freeway to get to and from your destination. If your destination is west of Village Center, use Imperial Highway to the greatest extent possible to get to and from your destination.
Mouth ulcers are caused by many disorders. These include: 1  Canker sores. 2  Gingivostomatitis. 3  Herpes simplex (fever blister). 4  Leukoplakia. 5  Oral cancer. 6  Oral lichen planus.
Here are some other causes of mouth ulcers: 1  Food allergies. 2  Eating acidic fruit such as oranges, tomatoes and pineapples. 3  Viral/bacterial infections.  Poor oral 1  hygiene. Gum disease. 2  Sinusitis. A deficiency of Vitamin  B. Dysfunctional immune 1  system. Poor digestion.  Stress.